Thickening of the walls of an artery by an overgrowth of muscular fibers arranged irregularly, intersecting each other without any definite relation to the axis of the vessel.
[arterio- + G. mys, muscle, + -oma, tumor, + -osis, condition]
arteriomyomatosisAn obsolete term for a haphazardly-arranged segmental thickening of an arterial wall, with segmental overgrowth of smooth muscle cells; it is possible that what was described as arteriomyomatosis represented the segmental smooth muscle proliferation seen in atherosclerosis and/or fibromuscular hyperplasia.
arteriomyomatosis(ar-tēr″ē-ō-mī″ō-mă-tō′sĭs) [ arterio- + myomatosis]
Thickening of arterial walls due to overgrowth of muscle fibers.